Sylvian -

The "VA" rating is crudely the Volts X Amps - so at 240 volts - 3.2 VA
at 14.5 volts comes out as 3.2/14.5 = 0.22 = 220 mA !

So you can buy a 14.5 V 3.2 VA transformer - or something of the same
voltage and maybe slightly higher VA rating will be fine. Have a look
at:

rswww.com

Either type in "transformer" in the search or try order-code search
201-8772